The Reaction of 3-Oxoolean-12-en-29-oic Acid with Acetic Anhydride-Perchloric Acid
KL Gaul, KG Lewis, BW Skelton and AH White
Australian Journal of Chemistry
38(9) 1371 - 1380
Published: 1985
Abstract
Reaction of acetic anhydride- perchloric acid with 3-oxoolean-12-en-29- oic acid (4) gave either the enol acetate (6) or the derived γ- pyrono compound (8). The structure assigned to the latter was confirmed by a single-crystal X-ray structure determination. Comment is made on doubts about this reaction as a method of structure assignment.
https://doi.org/10.1071/CH9851371
© CSIRO 1985